EP0810935B1 - Ensemble raclette d'essuie-glace muni d'une bande de metal comme element jointif oscillant - Google Patents

Ensemble raclette d'essuie-glace muni d'une bande de metal comme element jointif oscillant Download PDF

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Publication number
EP0810935B1
EP0810935B1 EP96945539A EP96945539A EP0810935B1 EP 0810935 B1 EP0810935 B1 EP 0810935B1 EP 96945539 A EP96945539 A EP 96945539A EP 96945539 A EP96945539 A EP 96945539A EP 0810935 B1 EP0810935 B1 EP 0810935B1
Authority
EP
European Patent Office
Prior art keywords
wiper
metal strip
wiper blade
tabular elements
blade according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96945539A
Other languages
German (de)
English (en)
Other versions
EP0810935A1 (fr
Inventor
Wolfgang Leutsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0810935A1 publication Critical patent/EP0810935A1/fr
Application granted granted Critical
Publication of EP0810935B1 publication Critical patent/EP0810935B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12201—Width or thickness variation or marginal cuts repeating longitudinally
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12375—All metal or with adjacent metals having member which crosses the plane of another member [e.g., T or X cross section, etc.]

Definitions

  • the invention relates to a wiper blade in which a metal strip serves as a tipping bar, as well as the metal strip self.
  • Wiper blades for motor vehicles or aircraft are high exposed to mechanical stress, on the one hand by Dust, insect remains and other hard dirt particles, that make the glass surface to be cleaned rough, on the other hand due to the tipping stress that occurs during the wiping process constantly changing direction and at rest due to the continued pressure on the glass pane is constant.
  • mechanical stresses chemical or environmental influences, e.g. through ozone, oil as well Alcohol and / or detergents in the windscreen washer fluid.
  • Wiper blades with appropriate profiles are usually continuous by extrusion or co-extrusion of vulcanizable polymer mixtures manufactured.
  • the strands are made after extrusion vulcanized to elastomers and to the required length cut.
  • the wiper blades have a wiper head (also called base part or back) with which the wiper blade is attached in the bracket system of the wiper.
  • the wiper head goes on its facing the glass pane Side in a tilting bridge, which is also neck, hinge or Transfer bridge is called and the wiper head with the wiper lip connects. This works when the wiper is operating than the actual functional part of the wiper blade and keeps the glass pane free of water.
  • the tipping bar is the mechanically most demanding and in the As a rule, the life-determining part of the wiper blade. He exists in the production after the mentioned extrusion or co-extrusion process from an elastomeric polymer Material.
  • the opposite surfaces of the wiper head and wiper lip can use the wiper lip in the idle state its main cross-sectional axis by up to about 45 ° from the Deviate perpendicular to the glass pane.
  • the main cross-sectional axis of the wiper lip (im not pressed condition of the wiper vertically on the glass surface) changes their position in the company accordingly continuously by up to about ⁇ 45 °.
  • the elastomers that wiper blades usually consist of arise from vulcanizable mixtures of natural or synthetic polymers or copolymers that with organic peroxides and / or sulfur to form elastomers be vulcanized.
  • Wiper blades made from only one elastomer Material, namely natural rubber, or from a mixture made from natural rubber and chloroprene rubber or from natural rubber and a diene type rubber such as butadiene rubber or styrene-butadiene rubber, e.g. in DE-C2 35 27 093 as to the state of technology. Natural rubber and other types of Diene rubber still contain olefinic double bonds and are therefore sensitive to ozone.
  • the wiper blade according to the invention according to DE-C2 35 27 093 consists essentially of another material, namely EPDM rubber, a copolymer of ethylene, propylene and a diene that is vulcanized with peroxides.
  • EPDM rubber a copolymer of ethylene, propylene and a diene that is vulcanized with peroxides.
  • the elastic Properties of EPDM rubber are, however, as well that of the aforementioned elastomers, to a considerable extent depending on the temperature. With blowing snow and temperatures below freezing, EPDM rubber is also growing brittle and is then not always the changing tilting movements grown.
  • EPDM rubber is not that desirable Resistant to chemicals and agents, like fuels or oil that cause the rubber to swell and soften, leading to premature wear of the wiper lip edge leads and promotes plastic deformations.
  • the highly stressed, function and lifespan of the wiper blade defining metal strips as a tipping bar is completely insensitive to chemical and environmental influences like them occur when used as intended.
  • the metal strip shows no aging under the influence of ozone, visible Light or UV radiation and no plastic deformation under pressure.
  • Wiper blades according to the invention according to claim 1 and metal strips for use as a tilting bar in such wiper blades Claim 8 are therefore more functional than wiper blades with prior art elastomeric tilting bars.
  • Figure 1 shows a cross section through a wiper blade Metal strip according to the invention.
  • Figure 2 is a perspective Representation of an embodiment of the metal strip, as in the wiper blades according to the invention can be used.
  • An essential feature of the wiper blades according to the invention is the elastic, springy metal strip (4).
  • On An example of such a metal strip is shown in FIG. 2 shown.
  • the flat elements (6) are essentially in one level. "Essentially” means that opposing, extending in the opposite direction two-dimensional elements (6) should form an angle from 180 ° is not too different, e.g. in the range of 135 ° is up to 225 °.
  • the flat elements (6) extend alternating to the right and left and thereby anchoring the Metal strips (4) securely in the wiper head (1).
  • the flat elements (7) on the common level of the flat elements (6) are vertical, are shown in the Embodiment the same width as the flat elements (6) and in relation to this in the longitudinal direction of the metal strip (4) offset, expediently by about half the element width.
  • the flat elements (7) extend down into the wiper lip (5), lie in the Gap (8) between wiper head (1) and wiper lip (5) freely and unfold theirs when the wiper is in operation elastic, springy properties.
  • the flat elements (7) in the wiper lip (5) can in the part of these elements that is used by the wiper slope (5) is enclosed, e.g. circular or rectangular cutouts be provided. You can also do the same the flat elements (7) in the wiper lip (5) enclosed part alternately right and left to the outside to bend.
  • the metal strip (4) is advantageously made of stainless Stainless steel or other suitable corrosion-resistant, elastic and springy material. He will be the size of the wiper blade dimensioned accordingly. In general is the thickness of the flat elements (6) and (7), depending on the intended use of the wiper blade (car, Truck, aircraft), 0.15 to 0.8 mm, in particular 0.15 to 0.4 mm.
  • the flat elements (6) and (7) are usually again depending on the intended use, 1 to 6 mm, in particular 1 to 3 mm long and 1 to 5 mm, in particular 1 to 3 mm wide. On the exposed part of the flat elements (7) in the space (8) there are generally no 0.5 to 3 mm, in particular 0.7 to 1.5 mm.
  • the metal strip (4) must have a certain flexibility parallel, as well as perpendicular to the glass pane, so the wiper lip (5) of the geometry of the mostly curved Glass panels can adjust.
  • This flexibility is in the Embodiment according to Figure 2 in the specified dimensions given.
  • the specialist in the field of sheet metal processing however, will readily become other appropriate embodiments can develop.
  • Metal strips after the figure 2 can be conveniently manufactured in punching and bending machines, firstly the flat elements (6) and (7) as well as punching out recesses in these elements and then bends the punched sheet.
  • Wiper head (1) and wiper lip (5) thus consist of elastomeric materials, like natural rubber or other diene type rubber, e.g. Polybutadiene rubber, polyisoprene rubber, polychloroprene rubber, Styrene-butadiene rubber and acrylonitrile-butadiene rubber, or from copolymers of dienes and other olefinic ones Monomers such as vinyl acetate, acrylic butylate, ethylene, propylene and 1-butene.
  • a suitable elastomeric copolymer the latter type is e.g. the mentioned EPDM rubber.
  • the wiper blades according to the invention can be extruded or to co-extrude vulcanizable mixtures the metal strip (4) are made around. The extrudate is then vulcanized in the heat, and the hardened Strands are cut to the desired length.
  • the vulcanizable Mixtures can contain conventional additives, for example Sulfur, thiuram disulfide, organic peroxides, such as dicumyl peroxide, as well as carbon black, zinc oxide and other fillers, Heat and oxidation stabilizers, lubricants and others Agents.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Brushes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (8)

  1. Bras d'essuie-glace avec une tête d'essuyage et une lèvre d'essuyage, qui consiste en au moins un élastomère et qui comprend une nervure de basculement qui relie la tête d'essuyage à la lèvre d'essuyage, nervure qui est constituée sous la forme d'une bande de métal élastique qui fait ressort,
    caractérisé en ce que
    la bande de métal présente un profil en forme de T et en ce que des éléments plats (6) de la bande de métal (4), qui partent du point géométrique où se rencontrent les deux barres du T qui correspondent à la traverse horizontale du T, et qui se trouvent sensiblement dans un plan commun, s'étendent alternativement vers la droite et vers la gauche et ancrent de cette façon la bande de métal dans la tête d'essuyage (1) .
  2. Bras d'essuie glace selon la revendication 1,
    caractérisé en ce que
    des éléments plats (7), décalés dans le sens de la longueur de la bande, qui partent du point géométrique où se rencontrent les deux barres du T et qui correspondent au montant vertical du T, et qui se trouvent sensiblement dans un plan commun, perpendiculairement aux éléments plats (6), s'étendent vers le bas jusque dans la lèvre d'essuyage (5) et ancrent de cette façon la bande de métal (4).
  3. Bras d'essuie glace selon la revendication 1 ou 2,
    caractérisé en ce que
    la bande de métal est en acier inoxydable.
  4. Bras d'essuie glace selon la revendication 3,
    caractérisé en ce que
    les éléments plats verticaux (7) présentent des évidements pour avoir un meilleur ancrage de la bande de métal dans la lèvre d'essuyage (5).
  5. Bras d'essuie glace selon la revendication 3 ou 4,
    caractérisé en ce que
    les éléments plats verticaux (7) sont pliés alternativement vers la droite et vers la gauche pour avoir un meilleur ancrage de la bande de métal dans la lèvre d'essuyage (5) dans la partie qui est entourée par la lèvre d'essuyage (5).
  6. Bras d'essuie glace selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la tête d'essuyage (1) et la lèvre d'essuyage (5) sont réalisées dans le même élastomère ou le même mélange d'élastomères.
  7. Bras d'essuie glace selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la tête d'essuyage (1) et la lèvre d'essuyage (5) sont réalisées en différents élastomères ou mélanges d'élastomères.
  8. Bande de métal (4) destinée à servir de nervure de basculement dans un bras d'essuie-glace avec raclette selon l'une des revendications 1 à 7,
    caractérisée en ce qu'elle présente :
    a) un profil en T,
    b) des éléments plats (6), qui partent du point géométrique où se rencontrent les deux barres du T qui correspondent au montant horizontal du T se trouvant sensiblement dans un plan commun, éléments qui s'étendent alternativement vers la droite et vers la gauche, et
    c) des éléments plats (6) qui partent du point géométrique où se rencontrent les deux barres du T qui correspondent à la barre verticale du T qui sont perpendiculaires au plan sensiblement commun des éléments plats (6), et qui sont décalés par rapport aux éléments plats (6) dans le sens de la longueur de la bande, éléments plats (7) qui s'étendent vers le bas.
EP96945539A 1995-12-13 1996-10-31 Ensemble raclette d'essuie-glace muni d'une bande de metal comme element jointif oscillant Expired - Lifetime EP0810935B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19546508 1995-12-13
DE19546508A DE19546508A1 (de) 1995-12-13 1995-12-13 Wischerblatt mit Metallstreifen als Kippsteg
PCT/DE1996/002071 WO1997021568A1 (fr) 1995-12-13 1996-10-31 Ensemble raclette d'essuie-glace muni d'une bande de metal comme element jointif oscillant

Publications (2)

Publication Number Publication Date
EP0810935A1 EP0810935A1 (fr) 1997-12-10
EP0810935B1 true EP0810935B1 (fr) 2000-03-22

Family

ID=7779990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96945539A Expired - Lifetime EP0810935B1 (fr) 1995-12-13 1996-10-31 Ensemble raclette d'essuie-glace muni d'une bande de metal comme element jointif oscillant

Country Status (7)

Country Link
US (1) US6401292B1 (fr)
EP (1) EP0810935B1 (fr)
KR (1) KR19980701581A (fr)
CN (1) CN1074369C (fr)
DE (2) DE19546508A1 (fr)
ES (1) ES2145516T3 (fr)
WO (1) WO1997021568A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19959259B4 (de) * 1999-12-09 2013-01-31 Volkswagen Ag Wischblatt zum Reinigen von Scheiben an Kraftfahrzeugen
FR2804392B1 (fr) * 2000-01-27 2002-05-03 Valeo Systemes Dessuyage Raclette d'essuyage a articulation renforcee et essuie-glace de vehicule automobile equipe d'une telle raclette
US7350259B2 (en) 2005-07-28 2008-04-01 Tenneco Automotive Operating Company Inc. Relative axial translation prevention system for wiper blade assemblies
DE102006057231A1 (de) * 2006-12-05 2008-06-12 Volkswagen Ag Scheibenwischergummi
CN101204689B (zh) * 2006-12-20 2011-06-29 深圳富泰宏精密工业有限公司 夹具及应用该夹具的挂具结构
EP2090479B1 (fr) * 2008-02-18 2014-11-26 Federal-Mogul S.a. Dispositif d'essuie-glace
DE102009001043A1 (de) * 2009-02-20 2010-08-26 Robert Bosch Gmbh Wischerblatt für einen Scheibenwischer sowie Verfahren zu seiner Herstellung
US9358956B2 (en) 2011-06-23 2016-06-07 GM Global Technology Operations LLC Enhanced vehicle wiper blade using active materials
DE102012205628A1 (de) * 2012-04-05 2013-10-10 Robert Bosch Gmbh Wischblattvorrichtung
CN103612618A (zh) * 2013-12-03 2014-03-05 贵阳万江航空机电有限公司 一种新型结构的汽车刮水器刮片胶条
AU2016243141B2 (en) * 2015-03-27 2020-02-27 Pylon Manufacturing Corp. Wiper blade with improved wiper strip
DE102019208004A1 (de) * 2019-05-31 2020-12-03 Robert Bosch Gmbh Gummimaterial eines Wischblattes für Scheibenwischer und Wischgummiprofil dieses enthaltend

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054389A (fr) *
US2634467A (en) * 1951-04-04 1953-04-14 Pyramid Mouldings Inc Flexible molding strip
US2797428A (en) * 1954-08-20 1957-07-02 Gen Motors Corp Flexible squeegee
US3461477A (en) * 1968-01-30 1969-08-19 Jimmie Ray Ikner Heated wiper blade
US3718940A (en) * 1971-06-24 1973-03-06 G Bode Heated wiper blade
JPS6135946A (ja) * 1984-07-30 1986-02-20 豊田合成株式会社 ワイパ−ブレ−ドゴム
JPH0134913Y2 (fr) * 1984-10-26 1989-10-24
DE3708719A1 (de) * 1987-03-18 1988-10-06 Daimler Benz Ag Wischerblatt fuer scheibenwischeranlagen
US5568670A (en) * 1992-06-29 1996-10-29 Samples; Timothy W. Wiper blade with wire elastic response member therein
FR2705299B1 (fr) * 1993-05-17 1995-07-07 Valeo Systemes Dessuyage Lame d'essuie-glace à deux pièces coextrudées et balai d'essuie-glace équipé d'une telle lame.
JP3140284B2 (ja) * 1993-12-24 2001-03-05 キヤノン株式会社 ファインダー光学系を有する光学機器

Also Published As

Publication number Publication date
DE19546508A1 (de) 1997-06-19
CN1074369C (zh) 2001-11-07
WO1997021568A1 (fr) 1997-06-19
EP0810935A1 (fr) 1997-12-10
US20020023309A1 (en) 2002-02-28
DE59604778D1 (de) 2000-04-27
KR19980701581A (ko) 1998-05-15
US6401292B1 (en) 2002-06-11
CN1211952A (zh) 1999-03-24
ES2145516T3 (es) 2000-07-01

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